Capturing Human Intelligence - ApprovalTests is an open source assertion/verification library to aid unit testing.
It is compatible with most .Net unit testing frameworks (Nunit, MsTest, Xunit, MBUnit)
Approval Tests can be used for verifying objects that require more than a simple assert. They also come prepackaged with utilities for some common .Net scenarios including
- Dictionaries & Collections
- Long Strings
- Log Files
- Asp.Net
- Asp.Net Mvc
- Winforms
- Wpf
- Entity Framework
- Rdlc reports
You can watch a bunch of short videos on getting started and using ApprovalTests in .Net at YouTube
If you prefer auditory learning, you might enjoy the following podcast
- [Hanselminutes] (http://www.hanselminutes.com/360/approval-tests-with-llewellyn-falco)
- Herding Code
- The Watir Podcast
Nightly (CI) Builds available at myget.org:
ApprovalTests on the MyGet Gallery
[UseReporter(typeof(DiffReporter))]
[TestFixture]
public class SampleTest
{
[Test]
public void TestList()
{
var names = new[] {"Llewellyn", "James", "Dan", "Jason", "Katrina"};
Array.Sort(names);
Approvals.VerifyAll(names, "");
}
}
Will Produce a File
SampleTest.TestList.received.txt
[0] = Dan
[1] = James
[2] = Jason
[3] = Katrina
[4] = Llewellyn
Simply rename this to SampleTest.TestList.approved.txt and the test will now pass.
The *.approved.* files must be checked into source your source control. This can be an issue with git as it will change the line endings.
The suggested fix is to add
*.approved.* binary to your .gitattributes
Do not add *.received.* files to your source control (they are transitory, and some SCMs like TFS will lock them or mark them read-only, which will break every dependent test).
ask on twitter: @LlewellynFalco or #ApprovalTests